// (c) 2015 Teresa Holfeld
package com.holfeld.teresa.vocabtrainer;

import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;


/**
 * An activity representing a single Stack detail screen. This
 * activity is only used on handset devices. On tablet-size devices,
 * item details are presented side-by-side with a list of items
 * in a {@link VocabularyListActivity}.
 * <p/>
 * This activity is mostly just a 'shell' activity containing nothing
 * more than a {@link TrainVocabularyFragment}.
 *
 * @author Teresa Holfeld, teresa.holfeld@gmail.com
 */
public class TrainVocabularyActivity extends ActionBarActivity {

    private static final int SHOW_VOCABULARY_REQUEST = 0;

    private String mVocabularyName;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_train_vocabulary);

        // Show the Up button in the action bar.
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        // savedInstanceState is non-null when there is fragment state
        // saved from previous configurations of this activity
        // (e.g. when rotating the screen from portrait to landscape).
        // In this case, the fragment will automatically be re-added
        // to its container so we don't need to manually add it.
        // For more information, see the Fragments API guide at:
        //
        // http://developer.android.com/guide/components/fragments.html
        //
        if (savedInstanceState == null) {
            // Create the detail fragment and add it to the activity
            // using a fragment transaction.
            mVocabularyName = getIntent().getStringExtra(TrainVocabularyFragment.ARG_VOCAB_NAME);
            loadFragment();
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_train_vocabulary, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if (id == android.R.id.home) {
            NavUtils.navigateUpTo(this, new Intent(this, VocabularyListActivity.class));
            return true;
        } else if (id == R.id.go_to_stack) {
            Bundle arguments = new Bundle();
            arguments.putString(TrainVocabularyFragment.ARG_VOCAB_NAME,
                    getIntent().getStringExtra(TrainVocabularyFragment.ARG_VOCAB_NAME));
            Intent stackIntent = new Intent(this, VocableListActivity.class);
            stackIntent.putExtra(TrainVocabularyFragment.ARG_VOCAB_NAME, mVocabularyName);
            startActivityForResult(stackIntent, SHOW_VOCABULARY_REQUEST);
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == SHOW_VOCABULARY_REQUEST) {
            mVocabularyName = getIntent().getStringExtra(TrainVocabularyFragment.ARG_VOCAB_NAME);
            loadFragment();
        }

    }

    private void loadFragment() {
        Bundle arguments = new Bundle();
        arguments.putString(TrainVocabularyFragment.ARG_VOCAB_NAME, mVocabularyName);
        TrainVocabularyFragment fragment = new TrainVocabularyFragment();
        fragment.setArguments(arguments);
        getSupportFragmentManager().beginTransaction()
                .add(R.id.vocabulary_container, fragment)
                .commit();
    }
}
